Yes it is, because in order to do so you have to take your eyes of the road and mess with the touch screen.
I do admit that it is more of a hassle now, but that coupled with the unknown regarding the permanence of this.. To each his/her own and I respect your opinion, but I personally do not feel quite as appalled as to request a refund. I do not feel that this makes my point of view cultish, just many bigger frustrations in my life than this.